USG Roof Board Applications - Manual

membrane
fastener
S ECUROCK® Glass-Mat Roof Board
insulation
steel deck
steel joist
1a Cover Board with S ECUROCK® Glass-Mat Roof Board
membrane
fastener
S ECUROCK® Glass-Mat Roof Board
existing roof system
membrane
S ECUROCK® Gypsum-Fiber Roof Board
insulation
steel deck
steel joist
membrane
existing roof system
S ECUROCK® Gypsum-Fiber Roof Board
Roof Board
Applications
There are four basic components in a low-slope commercial roof assembly:
– A structural deck and joists, which can be formed of steel, wood or concrete
– Insulation, including polyisocyanurate (ISO), extruded polystyrene (XPS) or
expanded polystyrene (EPS)
– Roof cover board installed between the insulation and the roofing membrane
to protect the insulation and support the membrane, improving fire protection,
traffic and hail resistance, and wind uplift performance
– A membrane or membrane system, which can be built-up roofing
(BUR), single-ply or modified bitumen
S ecurock ® Gypsum-Fiber roof board
recommended for fully adhered membrane.
S ecurock ® Gypsum-Fiber roof board
recommended for fully adhered membrane.
S ecurock ® Glass-Mat roof board recommended
for mechanically attached membrane.
S ecurock ® Glass-Mat roof board recommended
for mechanically attached membrane.
Cover Board
S
ecurock
High-Performance roof board is placed directly below the roofing membrane, providing primary support for the membrane and protecting the underlying insulation layer from
damage during installation and for the service life of the roof. Cover boards are used for impact protection for insulation boards (foot traffic, hail, etc.), to protect insulation from EPDM heat
transfer, as a surface to which asphalt can be mopped, and as a fire barrier for external fire.
Roof Recover Board
S
ecurock High-Performance roof board is placed over the existing membrane surface, where it functions as a separator and a support layer between the old roof and the new roofing
membrane. Roof recover boards provide a flat substrate for new roofs and have all of the benefits of a cover board.
The following are for illustration purposes only. S
ecurock ® High-Performance roof boards are engineered to perform within a properly designed roof system.
The use of S
ecurock
High-Performance roof boards as a roofing component is the responsibility of the design professional. Consult roofing manufacturers for
specific instructions on the application of their products to S ecurock High-Performance roof boards.